Microsoft Band is a new wrist-worn device that works with an online service called Microsoft Health. The service will analyze personal health and exercise data collected by the band and other devices. The display on the black rubber bracelet will show text messages from a cell phone, Facebook alerts, and barcodes that allow people to pay for things with a swipe of their wrist. The device will track heart rate, sleep quality, and calories burned using optical sensors rather than less accurate audio sensors. Continue reading Microsoft Band Joins the Health and Fitness Wearable Market